Think I can make out from his blurred advice that.... you download stb emulator to phone or tablet you will also need to download apps to fire from Google play to your phone or tablet.
Then you need the ip address of the firestick for the apps to fire app. You then send the stb emulator to your firestick....
That's how I use extreme Iptv app on my firestick anyway.
Anybody gets stuck comment here and I will help out if I can.